.chattingHead {
    position: fixed;
    top: 0;
    display: block;
    width: 100%;
    height: 50px;
    line-height: 50px;
    background-color: green;
}

.chattingBox {
    overflow-y: scroll;
    width: 100%;
    height: 620px;
    margin-top: 50px;
    margin-bottom: 50px;
}

.chattingBack {
    float: left;
    font-size: 25px;
    margin-left: 20px;
    color: white;
}

.chattingSend {
    position: fixed;
    bottom: 0;
    height: 50px;
    width: 100%;
    background-color: #fff;
}

.chattingMessage {
    float: left;
    border: 0;
    outline: none;
    width: 70%;
    height: 100%;
    font-size: 20px;
}

.chattingBtn {
    float: right;
    text-align: center;
    width: 20%;
    height: 100%;
    font-size: 20px;
    line-height: 50px;
    background-color: green;
    color: #fff;
}

.emo {
    float: right;
    width: 10%;
    line-height: 50px;
}

.emo img {
    vertical-align: middle;
}

.word {
    font-size: 25px;
    text-align: center;
    color: white;
}

.emoBox {
    position: fixed;
    display: none;
    bottom: 0;
    height: 200px;
    width: 100%;
    background-color: #fff;
}

.emoji {
    font-size: 30px;
}